A yogurt lover's essential, the extra set of eight 6-oz. glass jars allows for making up to eight different types of yogurt at one time. No need to finish the first batch before starting another! For use with our Automatic Yogurt Maker, these 6-oz. glass jars feature a freshness dating system that allows you to note the yogurt's made-on date. Because of their clear bodies and ribbed dateable tops, these jars may be stacked, making them space efficient. Simply store yogurt easily while reducing the clutter in your fridge.